CN101682482A

CN101682482A - multiplexing of sounding signals in ack and cqi channels

Info

Publication number: CN101682482A
Application number: CN200880020753A
Authority: CN
Inventors: D·P·马拉蒂
Original assignee: Qualcomm Inc
Current assignee: Qualcomm Inc
Priority date: 2007-06-18
Filing date: 2008-06-18
Publication date: 2010-03-24
Also published as: CN106899396A; TW200910806A; JP6177859B2; ES2901420T3; AU2008265722A1; BRPI0813473A2; CA2687872C; JP2016076947A; EP3451569A1; EP3451569B1; HUE042765T2; KR101189963B1; IL202336A0; JP2015019399A; WO2008157636A2; KR20100021526A; ES2707793T3; US20090073955A1; US8493873B2; BRPI0813473B1

Abstract

A resource block can include all symbols in a slot for each, generally a multiple of 12, sub-carrier in the resource block. A slot is typically 0.5 milliseconds (ms) and includes 7 symbols for short cyclic prefix (CP) and 6 symbols for long CP. The resource block can include a SRS channel as well as other channels such as an acknowledgement (ACK) channel and a channel quality indication (CQI) channel. Although defined as a separate physical channel, the SRS can be multiplex with uplink channels. In accordance therewith, an SRS can be detected in a slot of a 1.0 ms sub-frame constituting two slots, typically one slot but not the other including the SRS. The structure of the slot can be modified to facilitate the multiplexing by, e.g., replacing an existing symbol with the SRS, and a lengthand a type of a time domain orthogonal spreading code can be determined for each slot as a function of SRS presence.

Description

Detectable signal in ACK and CQI channel multiplexing

The cross reference of related application

The application requires in the U.S. Provisional Patent Application No.60/944 that is entitled as " METHODS ANDAPPRATUSES FOR MULTIPLEXING OF UPLINK SOUNDING SIGNALS; ACK AND CQI CHANNELS IN A WIRELESS COMMUNICATIONSYSTEM " of submission on June 18th, 2007,779 priority.The application requires in the U.S. Provisional Patent Application No.60/945 that is entitled as " METHODS AND APPRATUSES FORMULTIPLEXING OF UPLINK SOUNDING SIGNALS; ACK AND CQICHANNELS IN A WIRELESS COMMUNICATION SYSTEM " of submission on June 19th, 2007,076 priority.Aforementioned application integral body is incorporated this paper into by reference.

Technical field

Below describe and relate generally to radio communication, more specifically, relate to the multiplexing of affirmation (ACK) in wireless communication system or the uplink sounding resource signal (SRS) in channel quality indication (CQI) channel.

Background technology

Wireless communication system is disposed widely in order to various Content of Communication to be provided, and for example, can provide voice and/or data etc. via this wireless communication system.Typical wireless communication system or network can provide one or more shared resources (for example, bandwidth, transmitting power for a plurality of users ...) access.For example, system can use various multiple access technologies, such as frequency division multiplexing (FDM), Time Division Multiplexing, code division multiplexing (CDM), OFDM (OFDM) etc.

Usually, wireless multiple-access communication system can be supported a plurality of communications that access terminal simultaneously.Each accesses terminal and can communicate via the transmission on forward link and the reverse link and one or more base station.Forward link (or down link) refers to from the base station to the communication link that accesses terminal, and reverse link (or up link) refers to from the communication link of the base station that accesses terminal.Can wait via single-input single-output system, many single-input single-output system (SISO system)s or multiple-input and multiple-output (MIMO) system and set up this communication link.

A plurality of (the N of the general use of mimo system _TIndividual) transmitting antenna and a plurality of (N _RIndividual) reception antenna carries out transfer of data.By N _TIndividual transmitting antenna and N _RThe mimo channel that individual reception antenna forms can be decomposed into N _SIndividual independent channel can be with N _SIndividual independent channel is called space channel, wherein, and N _S≤ min{N _T, N _R.This N _SIn the individual independent channel each is corresponding to a dimension.In addition, if utilize the additional dimension that is generated by a plurality of transmitting antennas and reception antenna, then mimo system can provide improved performance (for example, higher throughput and/or higher reliability).

Mimo system can be supported time division duplex (TDD) and Frequency Division Duplexing (FDD) (FDD) system.In the TDD system, forward link transmissions and rl transmission are on same frequency range, so that principle of reciprocity allows to estimate forward link channel according to reverse chain channel.This makes that but access point can extract the transmit beam-forming gain on the forward link when at the access point place there being a plurality of antenna time spent.

Wireless communication system often utilizes one or more base stations that the overlay area is provided.Typical base station can send a plurality of data flow, is used for broadcasting, multicast and/or unicast services, and wherein, data flow is that the independent stream that receives the data of interest is arranged for certain accesses terminal.Accessing terminal in the overlay area of this base station can be used to receive of being carried by combined-flow or more than one or all data streams.Similarly, accessing terminal can be to base station or another data sending of access terminal.

Recently, adopted detection resource signal (SRS) channel as broadband pilot channel.The SRS channel is a kind of orthogonal channel, and it is intended to that physical channel is for example realized frequency selective scheduling and as the reference of closed power control.Usually, SRS is independent physical channel, by the 3rd layer of (L3) signaling it is distributed to each terminal or subscriber equipment.Therefore, the SRS channel is different with other channels in being included in Resource Block.

Summary of the invention

Below provide simplified summary, so that the basic comprehension to these embodiment is provided to one or more embodiment.This summary is not to be wide in range overview to all embodiment that are susceptible to, and neither will determine key element key or important of whole embodiment, the scope that neither delineate out any or all of embodiment.Its unique purpose is to provide in simplified form some notions of one or more embodiment, as the preamble of the more detailed description that provides after a while.

According to one or more embodiment and corresponding open file thereof, carry out multiplexing a plurality of schemes of describing at wireless communications environment to surveying resource signal (SRS) in conjunction with being used for.Resource Block can be included in the normally whole symbols in the time slot of each in the subcarrier of 12 multiple of quantity in the Resource Block.Time slot is 0.5 millisecond (ms) normally, and comprises 7 symbols for short Cyclic Prefix (CP), comprises 6 symbols for long CP.Resource Block can comprise SRS channel and other channels, for example, confirms (ACK) channel and channel quality indication (CQI) channel.Although be defined as independent physical channel, SRS can be multiplexing with uplink channel.In view of the above, can detect SRS in the time slot in the 1.0ms subframe of being made up of two time slots, a common time slot comprises SRS and another does not comprise SRS.The structure that can revise time slot is so that for example multiplexing by replace existing symbol to carry out with SRS, and length and the type that can come to determine for each time slot the time domain orthogonal spreading code according to the existence of SRS.

According to relevant scheme, this paper has described a kind of being used for and at wireless communications environment the SRS channel has been carried out multiplexing method.Described method can be included in and detect the SRS symbol in the time slot of subframe.In addition, described method can comprise the channel architecture of revising at least one time slot in the subframe.In addition, described method can also comprise the existence according to SRS, come to determine to be applied to the length and the type of time domain orthogonal spreading code of the time slot of described subframe.In addition, described method can also comprise the channel that determined spreading code is applied at least one time slot in the described subframe.

Another scheme relates to a kind of radio communication device.Described radio communication device can comprise memory, and it is preserved about following instruction: the time slot in subframe is found the SRS symbol; According to the existence of SRS in described time slot, calculating will be applied to the type and the length of time domain orthogonal spreading code of the time slot of described subframe; Revise the channel architecture of the one or more time slots in the described subframe; The spreading code that is calculated is applied to the channel of one or more time slots in the described subframe.In addition, described radio communication device can comprise processor, and it is couple to memory, and is configured to carry out the instruction that is kept in the memory.

Another scheme relates to a kind of radio communication device again, and it can realize the SRS multiplexing of channel in wireless communications environment.Described radio communication device can comprise: the module that is used for detecting at the time slot of subframe the SRS symbol.In addition, described radio communication device can comprise: be used for utilizing the existence of SRS to determine the type of the time domain orthogonal spreading code that will use at one or more time slots of described subframe and the module of length.In addition, described radio communication device can comprise: the module that is used for adjusting the channel architecture of described at least one time slot of subframe.Again in addition, described radio communication device can comprise: be used for determined spreading code is applied to module at least one time slot of described subframe.

Another scheme relates to a kind of computer program (being also referred to as machine readable media) again, comprises storage instruction (being also referred to as machine readable instructions) thereon, and described instruction is used for: the time slot in subframe detects the SRS symbol; According to the existence of the SRS in one or more time slots of described subframe, come to determine to be applied to the type and the length of time domain orthogonal spreading code of described one or more time slots of described subframe; Change the channel architecture of the time slot that comprises SRS; And determined spreading code is applied at least one time slot in the described subframe.

According to another scheme again, a kind of device in wireless communication system can comprise processor, and wherein, described processor is configured to detect the SRS symbol in the time slot of subframe.In addition, described processor can be configured to calculate the type of time domain orthogonal spreading code of one or more time slots that will be applied to described subframe and length to be used for one or more time slots of subframe, wherein calculates described spreading code according to the existence of the SRS in described one or more time slots of described subframe.In addition, described processor can be configured to revise the channel architecture of at least one time slot in the subframe.In addition, described processor can be configured to described spreading code is applied to described at least one time slot in the described subframe.

Address related objective for before finishing, one or more embodiment comprise various features, prove absolutely in the claims below it and specifically note.Below the explanation and the accompanying drawing sets forth in detail some illustrative approach of these one or more embodiment.But these schemes are only several in the different modes of expression, can use the principle of different embodiment therein, and described embodiment is comprising all this scheme and equivalents thereof.

Description of drawings

Fig. 1 is illustrating according to the wireless communication system of a plurality of schemes of this paper elaboration.

Fig. 2 A is the diagram of graphical representation of exemplary explanation of SRS structure of having described to be used to have the single time slot of short Cyclic Prefix (CP).

Fig. 2 B is the diagram of exemplary SRS structure of having described to be used to have the single time slot of long CP.

Fig. 3 can be used for illustrating in the multiplexing example system of wireless communications environment realization SRS.

Fig. 4 A is the illustrating of example sub 400 that is described in detail in affirmation (ACK) channel multiplexing under the situation of not surveying RS.

Fig. 4 B is illustrating of the multiplexing example sub 430 of the ack channel of detailed description when having detection RS and having replaced the ACK symbol.

Fig. 4 C is illustrating of the multiplexing example sub of the ack channel of detailed description when having detection RS and having replaced the RS symbol.

Fig. 5 A is the illustrating of example nominal (nominal) subframe 500 that is described in detail in the CQI channel multiplexing under the situation of not surveying RS.

Fig. 5 B is the illustrating of example sub that is described in detail in the CQI channel multiplexing when exist surveying RS and having replaced the CQI symbol.

Fig. 5 C is the illustrating of example sub piece that is described in detail in the CQI channel multiplexing when exist surveying RS and having replaced the RS symbol.

Fig. 6 is the illustrating of multiplexing illustrative methods that is used for realizing at wireless communications environment SRS.

Fig. 7 is used for revising channel so that illustrating in the illustrative methods of a plurality of further schemes of the multiplexing SRS of wireless communications environment.

Fig. 8 is exemplary the illustrating of accessing terminal that is used at the multiplexing SRS channel of wireless communications environment.

Fig. 9 is used for illustrating in the exemplary base of the multiplexing SRS of wireless communications environment.

Figure 10 is illustrating of the example wireless communication environment that can use in conjunction with various system and methods as herein described.

Figure 11 is the illustrating of example system of realizing the electric assembly of SRS multiplexing of channel in wireless communications environment.

Embodiment

With reference now to accompanying drawing, describes various embodiment, wherein use similar reference number to refer to similar key element in the whole text.In the following description, in order to make an explanation, a plurality of details have been set forth so that thorough to one or more embodiment is provided.Yet, obviously, do not having can to realize these embodiment under the situation of these details yet.In other examples, show known structure and equipment for use in describing one or more embodiment with the form of block diagram.

As employed in this application, term " assembly ", " module ", " system " or the like are intended to refer to the entity relevant with computer, or hardware, firmware, the combination of hardware and software, software, or executory software.For example, assembly can be but be not limited to: the process of moving on processor, processor, object, can carry out body (executable), execution thread, program and/or computer.For example, application program and this computing equipment that operates on the computing equipment can be assembly.One or more assemblies can be positioned at executive process and/or execution thread, and assembly can be positioned on the computer and/or is distributed on two or more the computers.In addition, these assemblies can be carried out from the various computer-readable mediums with storage various data structures thereon.Assembly can communicate by means of this locality and/or remote process, for example according to have one or more packets (for example, come from local system, distributed system in another component interaction and/or with on the network such as the internet by means of the data of a mutual assembly of signal and other system) signal.

And this paper describes various embodiment in conjunction with accessing terminal.Access terminal and also can be called system, subscriber unit, subscriber station, mobile radio station, mobile phone, distant station, remote terminal, mobile device, user terminal, terminal, Wireless Telecom Equipment, user agent, subscriber equipment or user's set (UE).Access terminal can be that cell phone, cordless telephone, Session Initiation Protocol phone, wireless local loop (WLL) are stood, PDA(Personal Digital Assistant), the handheld device with wireless connections ability, computing equipment or be connected to other treatment facilities of radio modem.And this paper describes various embodiment in conjunction with the base station.The base station can be used for communicating by letter with accessing terminal, and can also be called access point, Node B, eNodeB or some other terms.

And, can use standard program and/or engineering that each scheme as herein described or feature are embodied as method, device, manufacture.Term as used herein " manufacture " is intended to comprise can be from the computer program of any computer readable device, carrier or medium access.For example, computer-readable medium can include but not limited to: magnetic storage apparatus (for example hard disk, floppy disk, magnetic stripe etc.), CD (for example compact disk (CD), digital multi-purpose disk (DVD) or the like), smart card and flash memory device (for example EPROM, card, rod, key disk (key drive) or the like).In addition, various storage medium as herein described can represent to be used for one or more equipment and/or other machine readable media of stored information.Term " machine readable media " can include but not limited to: wireless channel and various other media that can store, comprise and/or carry instruction and/or data.

With reference now to Fig. 1,, shows wireless communication system 100 according to a plurality of embodiment provided herein.System 100 comprises base station 102, and it comprises a plurality of antenna sets.For example, an antenna sets can comprise antenna 104 and 106, and another antenna sets can comprise antenna 108 and 110, and another antenna sets can comprise antenna 112 and 114 again.Though each antenna sets is only shown two antennas, can use more or less antenna for each antenna sets.Base station 102 can also comprise transmitter chain and receiver chain, its each can comprise again and send with signal and (for example receive relevant a plurality of assemblies, processor, modulator, multiplexer, demodulator, demodulation multiplexer, antenna etc.), as one skilled in the art will recognize that.

Base station 102 can with 116 communicate by letter such as accessing terminal with 122 one or more the accessing terminal of accessing terminal; Yet, can be appreciated that can 116 to communicate by letter with 122 accessing terminal of any amount basically with being similar to access terminal in base station 102.Access terminal 116 and 122 for example can be cell phone, smart phone, kneetop computer, handheld communication devices, handheld computing device, satellite radio devices, global positioning system, PDA and/or any other equipment that is fit to of being used for communicating by wireless communication system 100.As directed, accessing terminal 116 can enough antennas 112 and 114 communicates, wherein antenna 112 and 114 via forward link 118 transmission information to accessing terminal 116, and via reverse link 120 from the 116 reception information that access terminal.In addition, accessing terminal 122 can enough antennas 104 and 106 communicates, wherein, antenna 104 and 106 via forward link 124 transmission information to accessing terminal 122, and via reverse link 126 from the 122 reception information that access terminal.For example, in Frequency Division Duplexing (FDD) (FDD) system, forward link 118 can use the frequency band different frequency band used with reverse link 120, and forward link 124 can use the frequency band different frequency band used with reverse link 126.In addition, in time division duplex (TDD) system, forward link 118 can utilize public frequency band with reverse link 120, and forward link 124 can utilize common band with reverse link 126.

Each group antenna and/or be assigned to the sector that zone that they communicate therein can be called base station 102.For example, antenna sets can be designed as accessing terminal in the sector with the zone that is covered by base station 102 and communicates.When communicating via forward link 118 and 124, the transmitting antenna of base station 102 can utilize beam shaping, so that improve for 116 and 122 forward link 118 and 124 the signal to noise ratio of accessing terminal.In addition, utilize beam shaping to access terminal 116 and 122 when transmitting to being randomly dispersed in the relevant area of coverage in base station 102, the suffered interference ratio that accesses terminal in the neighbor cell is low to its base station of transmitting of all accessing terminal by individual antenna.

Base station 102, access terminal 116 and/or access terminal and 122 can be the emission radio communication device and/or receive radio communication device at given time.When sending data, the emission radio communication device can use one or more channel, for example, and physical uplink control channel (PUCCH), physical uplink link sharing channel (PUSCH), detection resource signal (SRS) channel or the like.The SRS channel is the orthogonal wideband pilot channel that is exclusively used in two various objectives.At first, SRS can realize frequency selective scheduling for for example physical channel.Secondly, SRS can be as the reference of closed power control.Usually, SRS is independent physical channel, by the 3rd layer of (L3) signaling it is distributed to each and accesses terminal 116,122 or other subscriber equipmenies.Therefore, any suitable assembly or equipment can periodically send relevant SRS with configurable period.Can obtain the general introduction of SRS structure with reference to figure 2A and 2B.

With reference now to Fig. 2 A,, Figure 200 has described to be used to have the illustrating of SRS structure of the single time slot of short Cyclic Prefix (CP).As directed, time slot is represented 0.5 millisecond (ms) along time shaft 202, expression frequency 204 on the y direction of principal axis, thus make and be sent in data or channel in the first half of Figure 200 with upper frequency.Give to fix on and use short CP in this example, the time slot of this 0.5ms comprises 7 OFDMs (OFDM) symbol.Usually, two continuous 0.5ms time slots have been formed the subframe (not shown) of a 1.0ms, and wherein, 10 subframes are formed the frame of a 10ms.The Resource Block (not shown) can be that the symbolic number in the time slot multiply by sub-carrier number, and it is 12 multiple normally.

Usually, a local frequency division multiplexing (LFDM) symbol in every N subframe keeps for SRS 206.Therefore, SRS 206 can be used as in the 0.5ms time slot one in 7 symbols and exists, and for convenience, it is depicted as first symbol in this and other accompanying drawings as herein described, yet it will be appreciated that other positions that SRS 206 can be in this time slot.PUCCH 208 can be a high frequency channel, and PUCCH 210 can be a low frequency channel, and PUSCH is expressed as reference number 212.

SRS 206 can be multiplexing with PUCCH 208,210 and/or PUSCH 212.Therefore, can send a plurality of SRS parameters with signal along a channel, for example, when Zadoff-Chu (ZC) sequence, particular cyclic shift, bandwidth span, jumping and/or hopping structure or the like.

Fig. 2 B shows Figure 22 0, and it has described to be used to have the SRS structure of the single time slot of long CP.Can recognize, Figure 22 0 is substantially similar with Figure 200 of Fig. 2 A, shown time 222 and frequency 224 dimensions along x axle and y axle respectively, and SRS 226 is distributed to a symbol in this 0.5ms time slot, and it has crossed over whole uplink channel 228-232.Yet a difference is for long CP, and there are 6 symbols in each 0.5ms time slot usually, rather than to lack 7 symbols that CP provides.For easy to understand, remainder herein furnishes an explanation at short CP, provides general structure at this in conjunction with Fig. 2 A, but should be understood that desired theme can be applied to specify and other SRS structures such as other CP of long CP.

Turn to Fig. 3 now, what illustrate is system 300, and it can be used for realizing that at wireless communications environment SRS's is multiplexing.System 300 can comprise radio communication device 302, it is shown as by channel 304 sends data.Although be depicted as the transmission data, but radio communication device 302 also can (for example receive data by channel 304, radio communication device 302 can transmit and receive data simultaneously, radio communication device 302 can transmit and receive data constantly in difference, the combination of both of these case, or the like), for example by means of receiver 306 and transmitter 308.For example, radio communication device 302 can be base station (for example, the base station 102 of Fig. 1), access terminal (for example, Fig. 1 access terminal 116, Fig. 1 access terminal 122 ...) etc.Although should be further appreciated that at this and only described a channel, radio communication device 302 can be coupled to many channels, can send and/or receive data on these channels.In addition, channel 304 can be summarized many channels that have different structure and be applicable to universal or special purpose, for example, uplink physical channel described in Fig. 4 A-5C, can come with reference to them, so that illustrate the various features of radio communication device 302 and the feature of other assemblies as herein described or equipment in conjunction with Fig. 3.

Fig. 4 A has described example sub 400, and it describes affirmation (ACK) channel multiplexing under the situation of not surveying RS in detail.The time 418 of the subframe 400 expression 1.0ms dimension of the frequency 430 of y axle (and be depicted as), it can be divided into two 0.5ms time slots, it is similar to illustrated time slot 200 among Fig. 2 A on channel architecture, used short CP, and has comprised 7 symbols of each time slot in Resource Block.Yet, different with time slot 200, in the case, in arbitrary time slot of subframe 400, do not exist and survey RS.Be 4 ACK symbols 402 and 3 reference signals (RS) symbol 404 shown in the first half of first 0.5ms time slot.RS symbol 404 is the pilot configurations that are generally used for the demodulation of ack channel or other correlated channels.Usually, in the PUCCH zone, send ACK 402 and RS 404 symbols.Therefore, the relation of the structure of describing among easy to understand and Fig. 2 A and the 2B (for example, PUCCH 208,210,228,230).

Usually, on basis of sub-frames, divide the resource be used in PUSCH 422, and transmission frequency 420 can be between subframe and subframe frequency hopping (for example, from subframe 400 to another subframe).Opposite, (and channel quality is indicated (CQI), (NACK) unconfirmed, is mixed automatic repeat requests (HARQ), uplink scheduling request can to transmit ACK and RS information ...) PUCCH can be in boundary of time slot place frequency hopping, so that higher reliability for example is provided.Therefore, the border between first 0.5ms time slot and the 2nd 0.5ms time slot can be as the transmission frequency border of frequency hopping in PUCCH.Therefore, one group of specific user being associated of the data of ACK 402 that sends with the first half office of frequency 420 frequency spectrums in first time slot and RS 404 can frequency hopping to by the lower frequency 420 in second time slot shown in ACK 406 and the RS 408.Similarly, with first time slot in ACK414 and a different set of user that is associated of RS 416 can frequency hopping to the second time slot intermediate frequency spectrum the first half ACK 410 and RS 412.Be depicted in relation between ACK and the RS symbol with white and black background respectively.

In view of the above, the nominal PUCCH structure that is used for short CP allows each Resource Block that 18 ACK are arranged.Distribute this 18 ACK, each that covers in (orthogonal cover) for 3 time domain CDM quadratures has 6 frequency domain code division multiplexings (CDM) cyclic shift.For long CP, nominal PUCCH structure allows each Resource Block that 8 ACK are arranged, and each in covering for 2 time domain CDM quadratures has 4 frequency domain CDM cyclic shifts.

Turn to Fig. 4 B now, described example sub 430, its ack channel of describing in detail when having detection RS and having replaced the ACK symbol is multiplexing.Subframe 400 as Fig. 4 A, expression frequency 452 in y axle dimension, the 1.0ms of subframe 430 express times 450, it can be divided into two 0.5ms time slots, each all has and the similar channel architecture described in Fig. 2 A, has defined 7 symbols of each time slot for short CP.Yet in the case, second time slot do not describe to comprise detection RS as time slot 200.SRS432 has been described in first position in first 0.5ms time slot, yet, should reaffirm, SRS 4432 may reside in this time slot other positions and in another different time-gap of subframe 430.In addition, SRS 432 also may reside in the long CP structure, although reach the notion that the rapid this paper of understanding describes in detail for simplicity, has only used short CP to illustrate.

Different with the example nominal sub-frame 400 of Fig. 4 A, first time slot in subframe 430 comprises three ACK symbols 434,446, rather than four ACK symbols 402,414, but first time slot still comprises three RS symbols 436,448 of equal number.The reason of less ACK symbol is owing to there is a SRS 432, and it has taken in the short CP time slot in 7 symbols one.In the case, SRS 432 has replaced being present in four ACK symbols 402,414 in the subframe 400, so that only there are three ACK symbols 434,446 in first time slot of subframe 430.In second 0.5ms time slot of subframe 430, do not exist and survey RS, so channel architecture does not change.Therefore, as the situation in second time slot of the example sub of in Fig. 4 A, describing 400, there are 438,442 and three RS symbols 440,444 of four ACK symbols.

Turn to Fig. 4 C now, show and when surveying the RS existence and having replaced the RS symbol, describe the multiplexing example sub of ack channel 460.Again, as the subframe 400 of Fig. 4 A, represent frequency 482 along the y axle again, subframe 460 is illustrated in the 1.0ms of the time 480 of describing in the x axle dimension.1.0ms can be divided into two 0.5ms time slots, each all is similar to the channel architecture described in Fig. 2 A, and each time slot has 7 symbols (for example, short CP), surveys RS but only there is a time slot to comprise in the subframe 460.Be similar to the subframe 430 of Fig. 4 B, in first position of first 0.5ms time slot, show SRS 462 once more.Yet in the case, first 0.5ms time slot of subframe 460 has kept four ACK symbols 464,476, but only comprises two RS symbols 466,478, lacks one in first time slot than subframe 400,430.Therefore, in the case, SRS 462 has replaced the RS symbol, rather than as under the situation of subframe 430, having replaced the ACK symbol.Yet, as subframe 430, in the structure of second time slot with respect to for describing in the nominal sub-frame 400, occur changing, as be depicted as in second 0.5ms time slot of subframe 460 468,472 and three RS symbols 470,474 of four ACK symbols arranged.

With reference to figure 5A, example nominal sub-frame 500 is provided, it describes the CQI channel multiplexing under the situation of not surveying RS in detail.The 500 expression 1.0ms times of subframe, it can be divided into two 0.5ms time slots, is similar to the channel architecture described in Fig. 2 A, does not all survey RS in the time slot in office.Shown in the first half of first 0.5ms time slot be 5 CQI symbols 502 and 2 RS symbols 504, it has formed 7 available symbols in short CP structure.Similarly, in the bottom of frequency spectrum be 5 CQI symbols 514 and 2 RS symbols 516.Can be when subframe boundary frequency hopping in PUSCH 516 zones, the PUCCH channel can be in boundary of time slot place frequency hopping.Therefore, 5 CQI symbols 506 in second 0.5ms time slot are corresponding to CQI symbol 502, and 5 CQI symbols 510 are corresponding to CQI symbol 514.Similarly, the RS symbol in first time slot 504,516 corresponds respectively to the RS symbol 508,512 in second time slot of subframe 500.

Next turn to Fig. 5 B, described example sub 520, it describes the CQI channel multiplexing of working as under the situation of surveying the RS existence and having replaced the CQI symbol in detail.Subframe 500 as Fig. 5 A, the time of subframe 520 expression 1.0ms, it can be divided into first time slot and second time slot, each time slot is that 0.5ms and each time slot all are similar to the short CP structure of describing among Fig. 2 A, yet have only in one in two time slots SRS is arranged, and be to send CQI information in the PUCCH zone.In the case, in second time slot, there is not detection RS.Again, may reside in any position although survey RS (SRS 522), for illustrative purpose, in the primary importance of SRS 522 in first 0.5ms time slot.

Compare with the example nominal sub-frame 500 of Fig. 5 A, first time slot in subframe 430 comprises 4 CQI symbols 524 (and 4 CQI symbols 536 are arranged) in low frequency part, rather than 5 the CQI symbols 502 (with 514) in subframe 500.Yet

RS symbol

526 and 538 quantity remain 2 of each frequency parts equally.In the case, SRS 522 has replaced in a plurality of CQI symbols 524,536 in first time slot one.In addition, second time slot of subframe 520 is structurally substantially the same with subframe 500, has 532,528 and 2 RS symbols 534,530 of 5 CQI symbols.

With reference now to Fig. 5 C,, show example sub 550, it has been described at the CQI channel multiplexing that exists under the situation of surveying RS and having replaced the RS symbol.Again, as the subframe 500 of Fig. 5 A, the time of subframe 550 expression 1.0ms, it can be divided into two 0.5ms time slots, each time slot all is similar to the short CP channel architecture described in Fig. 2 A, yet have only in one in two time slots of subframe 550 SRS is arranged.Be similar to the subframe 520 of Fig. 5 B, in first position of first 0.5ms time slot, show SRS 552 again.Yet in the case, first 0.5ms time slot of subframe 550 has kept whole 5 CQI symbols 554,566, but only comprises a RS symbol 556,568, lacks one in first time slot than subframe 500,520.Therefore, in the case, SRS 552 has replaced the RS symbol rather than as replaced CQI under subframe 520 situations.Yet, as subframe 520, in the structure of second time slot with respect to for describing in the nominal sub-frame 500, occur changing, as be depicted as in second 0.5ms time slot of subframe 550 558,562 and 2 RS symbols 560,564 of 5 CQI symbols arranged.

Consider preamble and refer back to Fig. 3, radio communication device 302 also comprises SRS detector 310, and it can detect the SRS symbol in the time slot of subframe.For example, SRS detector 310 can detect the SRS symbol, such as detecting one of existing SRS symbol in first 0.5ms time slot of the subframe 430,460,520 of Fig. 4 B, 4C, 5B, 5C or 550 respectively.Can recognize that if do not detect the SRS symbol in Resource Block, then basis is to check and/or multiplexing ack channel or CQI channel that channel architecture can be similar basically to the subframe 400 or 500 of Fig. 4 A and 5A respectively.

Radio communication device 302 can also comprise structure multiplexer 312, and it can revise the channel architecture of at least one time slot in the subframe.Particularly, structure multiplexer 312 can be carried out SRS and ack channel or CQI channel multiplexing.Therefore, when detecting SRS in the time slot of SRS detector 310 in subframe, structure multiplexer 312 can be revised channel architecture for the SRS symbol by a symbolic in the time slot that will detect SRS therein.In one embodiment, structure multiplexer 312 can be revised channel architecture by the quantity that reduces the ACK symbol in comprising the time slot of SRS.This situation with from subframe 400 to subframe 430 transformation substantially similar, at this, the SRS 432 of Fig. 4 B has replaced one of the ACK symbol 402,414 of first 0.5ms time slot of Fig. 4 A.

In one embodiment, structure multiplexer 312 can be revised channel architecture by the quantity that reduces the CQI symbol in comprising the time slot of SRS.This situation with from subframe 500 to subframe 520 transformation similar substantially in essence, at this, the SRS 522 of Fig. 5 B has replaced one of the CQI symbol 502,514 of first 0.5ms time slot of Fig. 5 A.In one embodiment, structure multiplexer 312 can be revised channel architecture by the quantity that reduces the RS symbol in comprising the time slot of SRS.Can recognize that replacing the RS symbol can be to carry out in ack channel or CQI channel.Therefore, in one case, this scheme with from subframe 400 to subframe 460 transformation substantially similar, at this, RS symbol 404,416 first time slot from ack channel is removed, to allow to add SRS462.Under second kind of situation, this scheme can with from subframe 500 to subframe 550 transformation substantially similar, wherein, omit RS symbol 504,516 from first time slot of CQI channel, so that be SRS 552 slot millings.

In addition, radio communication device 302 can comprise spread spectrum coder 314, and it can be according to the existence of SRS, determines to be applied to the length and the type of time domain orthogonal spreading code of the time slot of subframe.Therefore, whether spread spectrum coder 314 can comprise the different spreading codes that SRS determines to be applied to this time slot according to each time slot of subframe.For the concrete example of various situations is provided, refer again to Fig. 4 B and 4C.

Refer back to Fig. 4 B, first time slot of ack channel comprises three ACK symbols, three RS symbols, and the SRS that has replaced one of the ACK symbol of former existence.Second time slot do not have SRS, comprises four ACK symbols and three RS symbols.In one embodiment, spread spectrum coder 314 can be at the time slot that comprises SRS (for example, first 0.5ms time slot) in ACK symbol and RS symbol are used 3 point discrete Fourier conversion (DFT) spreading codes, wherein, determined length and type are by 3 points (for example, length) DFT (for example, type) represents.Because the length and/or the type of time domain orthogonal spreading code are different for the time slot that does not have SRS, therefore different spreading codes can be applied to second time slot in the subframe 430.Second time slot comprises four ACK symbols and three RS symbols in this example.In one embodiment, spread spectrum coder 314 can be used 4 orthogonal intersections to the ACK symbol in second time slot, wherein 4 orthogonal intersections can be Hadamard or DFT type, and can also use 3 DFT spreading codes to the RS symbol in second time slot.

Allow each Resource Block that 18 ACK are arranged although it will be appreciated that nominal configuration, the multiplexing of SRS and ack channel still can provide each Resource Block 18 ACK.Therefore, needn't carry out any change to the multiplexing capacity of ACK for low Doppler effect.

As previously shown, desired theme can also be applied to long CP.As the example of this situation, in one embodiment, spread spectrum coder 314 can be used 3 DFT spreading codes to the ACK symbol in comprising the time slot of SRS, the RS symbol is used 2 orthogonal intersections (for example, Hadamard or DFT).For second time slot, spread spectrum coder 314 can be used 4 orthogonal intersections to the ACK symbol, and the RS symbol is used 2 orthogonal intersections.Although nominal configuration allows 8 ACK of each Resource Block for long CP, multiplexing channel still can be for each Resource Block provides 8 ACK, thereby do not change the multiplexing capacity of ACK.

Next, turn to Fig. 4 C once more, first time slot of ack channel comprises four ACK symbols, two RS symbols and has replaced the SRS of one of the RS symbol of former existence.Second time slot do not comprise SRS, comprises four ACK symbols and three RS symbols.In one embodiment, spread spectrum coder 314 can comprise in the time slot of SRS (for example, first 0.5ms time slot) the application of ACK symbol 2 or 4 DFT spreading codes.In one embodiment, spread spectrum coder 314 can be used 4 orthogonal intersections to the ACK symbol in second time slot, and the RS symbol in second time slot is used 3 DFT spreading codes.With regard to this nominal configuration, multiplexing structure allow 12 ACK of each Resource Block.Can reduce the multiplexing capacity of ACK for low Doppler effect, but still can (for example, SF=2) the Doppler effect structure is optimized for high.In other words, can obtain the multiplexing capacity identical for the structure of SF=2 with nominal configuration.

In one embodiment, aforementioned schemes can be used for other channels in PUCCH zone, for example, the CQI channel, in aforementioned schemes, length and type that spread spectrum coder 314 is determined orthogonal intersection for the ACK symbol in the ack channel and RS symbol.Therefore, coding spread spectrum can be respectively the subframe 520 of Fig. 5 B and 5C and length and the type that each time slot of 550 is determined the time domain orthogonal spreading code, and wherein, structure multiplexer 312 has been replaced CQI symbol (for example, subframe 520) or RS symbol (for example, subframe 550).This can be with finishing with substantially similar mode as herein described.SRS has replaced it will be appreciated that the effective code of CQI has increased in first structure of CQI symbol (for example, subframe 520) therein.SRS has replaced in second structure of RS symbol (for example, subframe 550) therein, and effectively code check does not change usually, and channel estimating be lost in can be slightly high in first time slot.It will be appreciated that each Resource Block can send 6 CQI in two kinds of structures.Therefore, do not change the multiplexing capacity of CQI usually.

With reference to figure 6 and 7, show and the multiplexing relevant method that realizes SRS.Although it is succinct for what explain, this method shown and be described as sequence of operations, but will appreciate that and recognize, the restriction of the order that this method is not operated, according to one or more embodiment, certain operations can be to carry out with different order shown and described herein and/or to carry out with other operations are parallel.For example, it will be understood by those skilled in the art that and recognize, as an alternative, can be a series of relevant states or incident with method representation, for example in state diagram.In addition, according to one or more embodiment, be not to need the operation shown in all to come implementation method.

With reference to figure 6, what illustrate is method 600, is used for multiplexing at the SRS of wireless communications environment.At 602 places, can in the time slot of subframe, detect the SRS symbol.Usually, subframe is represented 1.0ms and can be comprised two 0.5ms time slots.SRS can be present in first or second time slot potentially, but in either case, can be detected is to be present in certain position in one of two time slots in the subframe.At 604 places, can revise the channel architecture of at least one time slot in the subframe.For example, its position that can detect at 602 places in the time slot of SRS removes ACK symbol, CQI symbol or RS symbol and adds SRS.

At 606 places, can determine to be applied to the type and the length of time domain orthogonal spreading code of the time slot of subframe according to the existence of SRS.Described type for example can be Hadamard or DFT, and described length for example can be 2 points, 3 points, 4 or the like.The type and the length that can whether be present in the time domain spreading code of determining to be applied to this particular time-slot in the given time slot according to SRS.At 608 places, determined spreading code can be applied at least one time slot in the subframe.

Turn to Fig. 7, what illustrate is method 700, and it is used for being implemented in wireless communications environment and revises channel architecture so that a plurality of schemes of multiplexing SRS.At 702 places, the channel architecture of revising at least one time slot in the subframe can also comprise the quantity that reduces the ACK symbol in the time slot that comprises SRS.At 704 places, the channel architecture of revising at least one time slot in the subframe can also comprise the quantity that reduces the RS symbol in the time slot that comprises SRS.At 706 places, the channel architecture of revising at least one time slot in the subframe can also comprise the quantity that reduces the CQI symbol in the time slot that comprises SRS.Can recognize that under each situation, the symbol that is reduced can provide the space for SRS in related time-slot.

Fig. 8 is 800 illustrates of accessing terminal, and it is used for the channel multiplexing at the SRS of wireless communications environment.Accessing terminal 800 comprises receiver 802, and for example it is from reception antenna (not shown) received signal, and carries out common operation (for example, filtering, amplification and down-conversion etc.) on the signal that receives, and the signal of digitlization through regulating, to obtain sample.For example, receiver 802 can be the MMSE receiver, and can comprise demodulator 804, and it can carry out demodulation to the symbol that receives, and they are offered processor 806 carries out channel estimating.Processor 806 can be specifically designed to the information that analysis receives by receiver 802 and/or produce the information processing device that sends by transmitter 816, be used to control access terminal one or more assemblies of 800 processor and/or be used to analyze the information that receives by receiver 802 simultaneously, produce the access terminal processor of one or more assemblies of 800 of the information that sends by transmitter 816 and control.

Accessing terminal 800 can also comprise memory 808, and it operationally is coupled to processor 806, and can store the data that will send, reception data and with carry out various operations any other information of being fit to relevant that this paper sets forth with function.Memory 808 can also store with based on the rate-matched of circular buffer relevant agreement and/or algorithm.

Can be appreciated that data storage as herein described (for example memory 808) can be volatile memory or nonvolatile memory, perhaps can comprise volatile memory and nonvolatile memory.Exemplarily and without limitation, nonvolatile memory can comprise that read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electricity can wipe PROM (EEPROM) or flash memories.Volatile memory can comprise random-access memory (ram), and it can be used as external cache.Exemplarily and without limitation, RAM can provide with multiple mode, such as: synchronous random access memory (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), Double Data Rate SDRAM (DDR SDRAM), enhancement mode SDRAM (ESDRAM), Synchlink DRAM (SLDRAM) and direct Rambus RAM (DRRAM).The memory 808 of thematic system and method is intended to include, but are not limited to these type of memory and any other suitable memory access type.

Receiver 802 is substantially similar with the receiver 306 of Fig. 3, also operationally is coupled to spread spectrum coder 810 and/or structure multiplexer 812, and they are substantially similar with the structure multiplexer 312 of the spread spectrum coder 314 of Fig. 3 and Fig. 3 respectively.In addition, although do not illustrate, it is contemplated that accessing terminal 800 can comprise the SRS detector, the SRS detector 310 of itself and Fig. 3 is substantially similar.Therefore, access terminal 800 can detect in the time slot the SRS symbol (for example, by utilizing the SRS detector), use structure multiplexer 812 to revise the channel architecture of at least one time slot in the subframe, visit spread spectrum coder 810 is so that determine to be applied to the length and the type of time domain orthogonal spreading code of the time slot of subframe according to the existence of SRS, and further determined spreading code is applied to the channel of at least one time slot in the subframe.

Fig. 9 is illustrating of system 900, and it is used for being implemented in SRS multiplexing of wireless communications environment.System 900 comprises base station 902 (for example, access point), and base station 902 has: receiver 910, its by a plurality of reception antennas 906 from one or more 904 received signals that access terminal; And transmitter 922, it 904 sends signals by transmitting antenna 908 to one or more accessing terminal.Receiver 910 can be from reception antenna 906 reception information, and are operably connected to the demodulator 912 that is used for the information that demodulate reception arrives.Analyze demodulated symbols by processor 914, processor 914 is similar to the processor that the above Fig. 8 of being relevant to describes, and be coupled to memory 916, memory 916 storages will send to the data that access terminal 904 (perhaps other different base station (not shown)) or receive from access terminal (perhaps other different base station (not shown)), and/or relevant with function information that any other is fit to the various operations of carrying out this paper elaboration.Processor 914 also is coupled to spread spectrum coder 918, and its existence according to SRS determines to be applied to the length and the type of time domain orthogonal spreading code of the time slot of subframe.

Spread spectrum coder 918 operationally is coupled to structure multiplexer 920, and it can revise the channel architecture of at least one time slot in the subframe.In addition, although do not illustrate, be susceptible to base station 902 and can comprise and the substantially similar SRS detector of the SRS detector 310 of Fig. 3.Spread spectrum coder 918 and structure multiplexer 920 can provide the data that will send to modulator 922.For example, the data that send are included in the PUCCH channel multiplexing with SRS (for example, ack channel or CQI channel).Modulator 922 can carry out multiplexing to frame, accesses terminal 904 so that be transferred to by antenna 908 by transmitter 926.Separate although be depicted as with processor 914, can be appreciated that, interleaver 918, interleaver 920 and/or modulator 922 can be the parts of processor 914 or a plurality of processor (not shown).

Figure 10 has shown example wireless communications 1000.For succinctly, wireless communication system 1000 has been described a base station 1010 and one and has been accessed terminal 1050.Yet, can be appreciated that system 1000 can comprise more than a base station and/or more than one and accessing terminal, wherein, extra base station and/or access terminal can with exemplary base 1010 described below with access terminal 1050 similar basically or different.In addition, can be appreciated that base station 1010 and/or access terminal and 1050 can use system described herein (Fig. 1,3,8-9 and 11) and/or method (Fig. 6 and 7) to be implemented in the radio communication between it.

In the base station 1010, the business datum of a plurality of data flow is offered emission (TX) data processor 1014 from data source 1012.According to example, can be by each data flow of antenna transmission separately.TX data processor 1014 formats, encodes and interweave business data flow, so that coded data to be provided according to the specific coding scheme of selecting for this data flow.

The coded data of each data flow can use OFDM (OFDM) technology and pilot data to carry out multiplexing.In addition or interchangeable, can carry out frequency division multiplexing (FDM), Time Division Multiplexing or code division multiplexing (CDM) to frequency pilot sign.The known data pattern that pilot data is normally handled in known manner, and can use pilot data to estimate channel response at 1050 places that access terminal.(for example be based upon certain modulation schemes that each data flow selects, two-phase PSK (BPSK), Quadrature Phase Shift Keying (QSPK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM) etc.) modulate (promptly, sign map) this data flow through multiplexing pilot data and coded data, so that modulation symbol to be provided.Can be by data rate, coding and the modulation of each data flow be provided by processor 1030 instructions that carry out or that provide.

The modulation symbol of data flow is offered TX MIMO processor 1020, and it can further handle these modulation symbols (for example, using OFDM).TX MIMO processor 1020 is subsequently to N _TIndividual transmitter (TMTR) 1022a provide N to 1022t _TIndividual stream of modulation symbols.In a plurality of embodiment, the antenna of the symbol of 1020 pairs of data flow of TX MIMO processor and transmission symbol uses the beam shaping weight.

Each transmitter 1022 all receives and handles symbols streams separately, and so that one or more analog signals to be provided, the step of going forward side by side joint (for example, amplification, filtering and up-conversion) analog signal is to provide the modulation signal that is adapted to pass through the mimo channel transmission.Subsequently respectively from N _TIndividual antenna 1024a sends the N of spontaneous emission machine 1022a to 1022t to 1024t _TIndividual modulation signal.

At 1050 places that access terminal, by N _RIndividual antenna 1052a is to the modulation signal that 1052r receive to send, and will offer separately receiver (RCVR) 1054a from the received signal of each antenna 1052 to 1054r.Each receiver 1054 is all regulated (for example, filtering, amplification and down-conversion) signal separately, and the signal of digitlization through regulating to be providing sample, and further handles these samples so that corresponding " reception " symbols streams to be provided.

RX data processor 1060 can receive and handle from N based on specific receiver treatment technology _RThe N of individual receiver 1054 _RIndividual receiving symbol stream is to provide N _TIndividual " detection " symbols streams.RX data processor 1060 can carry out demodulation, deinterleaving and decoding to each detected symbol stream, to recover the business datum of this data flow.By RX data processor 1060 processing of carrying out and the processing complementation of carrying out by the TX MIMO processor 1020 and the TX data processor 1014 at 1010 places in the base station.

Processor 1070 periodically determines to use which above-mentioned available technology.In addition, processor 1070 formulistic reverse link message, it comprises matrix exponetial part and order value part.

Reverse link message can comprise the various information relevant with communication link and/or receiving data stream.Reverse link message is handled by TX data processor 1038 subsequently, modulate by

modulator

1080,1054a regulates to 1054r by transmitter, and is sent out go back to base station 1010, and wherein TX data processor 1038 also receives the business datum of a plurality of data flow from data source 1036.

1010 places in the base station, receive by antenna 1024 from 1050 the modulation signal of accessing terminal, regulate, carry out demodulation by demodulator 1040 by receiver 1022, handle by RX data processor 1042, to extract by 1050 reverse link message that send that access terminal.In addition, processor 1030 can be handled the message of extraction to determine which pre-coding matrix is used for determining the beam shaping weight.

Processor

1030 and 1070 can instruct respectively (for example, control, coordination, management etc.) in the base station 1010 with access terminal the operation at 1050 places.Each

processor

1030 and 1070 can be associated with program code stored and memory of data 1032 and 1072.

Processor

1030 and 1070 can also be carried out computing, estimates with the frequency and the impulse response that obtain up link and down link respectively.

In a scheme, logic channel is categorized as control channel and Traffic Channel.Logical control channel can comprise Broadcast Control Channel (BCCH), and it is the DL channel that is used for the broadcast system control information.In addition, logical control channel can comprise Paging Control Channel (PCCH), and it is the DL channel that transmits paging information.In addition, logical control channel can comprise multicast control channel (MCCH), its be used to one or several MTCH send multimedia broadcasting and multicast service (MBMS) scheduling and control information a bit to multiple spot DL channel.Usually, setting up after radio resource control (RRC) connects, this channel is only used by the UE that receives MBMS (for example, old MCCH+MSCH).In addition, logical control channel can comprise Dedicated Control Channel (DCCH), and it is the point-to-point two-way channel, is used to send dedicated control information, and by having the UE use that RRC connects.In a scheme, the logic business channel can comprise Dedicated Traffic Channel (DTCH), and it is the point-to-point two-way channel, is specifically designed to a UE and transmits user profile.In addition, the logic business channel can comprise multicast service channel (MTCH), its be used to send business datum a bit to multiple spot DL channel.

In a scheme, transmission channel is categorized as DL and UL.The DL transmission channel comprises broadcast channel (BCH), downlink shared data channel (DL-SDCH) and paging channel (PCH).PCH can by broadcast and be mapped on the whole sub-district support on physical layer (PHY) resource that can be used for other control/Traffic Channels UE energy-conservation (for example, can give UE with discontinuous re-transmission (DRX) circulation indication by network ...).The UL transmission channel can comprise Random Access Channel (RACH), request channel (REQCH), up link shared data channel (UL-SDCH) and a plurality of PHY channel.

The PHY channel can comprise one group of DL channel and UL channel.For example, DL PHY channel can comprise: Common Pilot Channel (CPICH); Synchronizing channel (SCH); Common Control Channel (CCCH); Share DL control channel (SDCCH); Multicast control channel (MCCH) is shared UL allocated channel (SUACH); Acknowledgement channel (ACKCH); DL physics shared data channel (DL-PSDCH); UL power control channel (UPCCH); Paging index channel (PICH); And/or load indicating channel (LICH).As further instruction, UL PHY channel can comprise: Physical Random Access Channel (PRACH); Channel quality indicating channel (CQICH); Acknowledgement channel (ACKCH); Antenna subset indicating channel (ASICH); Sharing request channel (SREQCH); UL physics shared data channel (UL-PSDCH); And/or broadband pilot channel (BPICH).

Will appreciate that embodiment as herein described can be realized by hardware, software, firmware, middleware, microcode or its combination in any.For hardware implementation mode, can be at one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, be designed to carry out other electronic units of function described herein, or realize processing unit in its combination.

When realizing embodiment, they can be stored in the machine readable media such as memory module with software, firmware, middleware or microcode, program code or code segment.Code segment can be represented process, function, subprogram, program, routine, subroutine, module, software kit, class, or the combination in any of instruction, data structure or program statement.By transmitting and/or reception information, data, independent variable, parameter, or memory content, code segment can be coupled to another code segment or hardware circuit.Can transmit, transmit or transmission information, independent variable, parameter, data etc. with any suitable mode that comprises Memory Sharing, message transmission, token transmission, Network Transmission etc.

For software realization mode, can realize the techniques described herein with the module (for example process, function or the like) of carrying out function described herein.Software code can be stored in the memory cell, and can be carried out by processor.Can realize memory cell in processor or outside the processor, under the situation outside processor, memory cell can be coupled to processor in the mode that can communicate by letter by several different methods known in the art.

With reference to Figure 11, shown is system 1100, and it can realize the SRS multiplexing of channel in wireless communications environment.For example, system 1100 can be positioned at the base station at least in part.According to another example, system 1100 can be positioned at least in part and access terminal.Can recognize, system 1100 can be expressed as the functional block that comprises a plurality of functional blocks, these functional blocks function that can be expression be realized by processor, software or its combination (for example firmware).System 1100 comprise can co-operate the logic groups 1102 that constitutes of a plurality of electric assembly.

For example, logic groups 1102 can comprise electric assembly 1104, is used for finding in the time slot of the subframe that is included in Resource Block the SRS symbol.In addition, logic groups 1102 can comprise electric assembly 1106, is used for the existence according to SRS, and calculating will be applied to the length and the type of time domain spreading code of the time slot of subframe.In addition, logic groups 1102 can comprise electric assembly 1108, is used for revising the channel architecture of the one or more time slots of subframe.Logic groups 1102 can comprise electric assembly 1110, and the spreading code that is used for being calculated is applied to one or more channel of time slot and/or Resource Block.For example, detected SRS can be multiplexing with other data channels in the PUCCH zone in the time slot of Resource Block, such as CQI channel or ack channel.In view of the above, can in the time slot of Resource Block, find or detect SRS.Subsequently for example, can revise the channel architecture of this time slot by in comprising the time slot of SRS, reducing the quantity of symbol.Therefore, can reduce the quantity of ACK, CQI or RS symbol, so that provide the position for SRS.Can constitute remaining 5 (for long CP) or 6 (for short CP) symbols with the time domain spreading code, can in time slot, whether have to determine the type and the length of time domain spreading code according to SRS.In addition, system 1100 comprises memory 1112, and its preservation is used to carry out the instruction with electric assembly 1104,1106,1108 and 1110 function associated.Although be shown in outside the memory 1112, will appreciate that one or more in the electric assembly 1104,1106,1108 and 1110 can be positioned at memory 1112.

Top description comprises the example of one or more embodiment.Certainly, can't describe out each combination that can conceive of assembly or method here in order to describe these previous embodiment, but those of ordinary skill in the art can recognize other combination and permutation that have many embodiment.Correspondingly, the embodiment of description is intended to be included in interior all these changes, modification and the variation of spirit and scope of claims.In addition, about the extension that the word that uses in detail specifications or claim " comprises ", this word is intended to represent to be included, when its implication and word " comprise " transition speech in being used as claim to release meaning similar.

Claims

1, a kind of being used for carried out multiplexing method at wireless communications environment to surveying resource signal (SRS), may further comprise the steps:

In the time slot of subframe, detect the existence of SRS symbol;

Revise the channel architecture of at least one time slot in the subframe;

According to the existence of SRS, determine in the described time slot of described subframe, will be applied to the length and the type of the time domain orthogonal spreading code of channel; And

In at least one time slot in described subframe determined spreading code is applied to described channel.

2, the method for claim 1, the step of revising the channel architecture of at least one time slot in the subframe is further comprising the steps of:

The quantity of affirmation (ACK) symbol of minimizing in comprising the time slot of described SRS.

3, method as claimed in claim 2, the step that at least one time slot in described subframe determined spreading code is applied to described channel is further comprising the steps of:

In comprising the time slot of described SRS, ACK symbol and reference signal (RS) symbol are used 3 point discrete Fourier conversion (DFT) spreading codes.

4, method as claimed in claim 2, the step that at least one time slot in described subframe determined spreading code is applied to described channel is further comprising the steps of:

In second time slot ACK symbol is used 4 orthogonal intersections and the RS symbol is used 3 DFT spreading codes, described orthogonal intersection is Hadamard or DFT.

5, the method for claim 1, the step of determining will to be applied to the length of time domain orthogonal spreading code of channel and type according to the existence of SRS in the described time slot of described subframe is further comprising the steps of:

Described subframe is used long loop prefix (CP).

6, method as claimed in claim 5, the step that at least one time slot in described subframe determined spreading code is applied to described channel is further comprising the steps of:

In comprising the time slot of described SRS, the ACK symbol is used 3 DFT spreading codes and the RS symbol is used 2 orthogonal intersections.

7, method as claimed in claim 5, at least one time slot in described subframe that institute is true

It is further comprising the steps of that fixed spreading code is applied to the step of described channel:

In second time slot, the ACK symbol is used 4 orthogonal intersections and the RS symbol is used 2 orthogonal intersections.

8, the method for claim 1, the step of revising the channel architecture of at least one time slot in the subframe is further comprising the steps of:

The quantity of the RS symbol of minimizing in comprising the time slot of described SRS.

9, method as claimed in claim 8, the step that at least one time slot in described subframe determined spreading code is applied to described channel is further comprising the steps of:

In comprising the time slot of described SRS, use 2 DFT spreading codes to 2 or 4 DFT spreading codes of ACK symbol application and to the RS symbol.

10, method as claimed in claim 8, the step that at least one time slot in described subframe determined spreading code is applied to described channel is further comprising the steps of:

In second time slot, the ACK symbol is used 4 orthogonal intersections and the RS symbol is used 3 DFT spreading codes.

11, the method for claim 1, the step of revising the channel architecture of at least one time slot in the subframe is further comprising the steps of:

The quantity of minimizing channel quality indication (CQI) symbol in comprising the time slot of described SRS.

12, method as claimed in claim 11, further comprising the steps of:

The quantity of the RS symbol by reducing the CQI channel increases effective code check.

13, a kind of radio communication device comprises:

Memory, it is preserved about following instruction:

In the time slot of subframe, find the existence of SRS symbol;

Revise the channel architecture of the one or more time slots in the described subframe;

According to the existence of SRS described in the described time slot, calculate the length and the type of the time domain orthogonal spreading code that in the time slot of described subframe, will be applied to channel;

In one or more time slots of described subframe, the spreading code that is calculated is applied to described channel; And

Processor, it is coupled to described memory, and is configured to carry out the instruction that is kept in the described memory.

14, radio communication device as claimed in claim 13, described memory are also preserved about following instruction:

The quantity of the ACK symbol of minimizing in comprising the time slot of described SRS.

15, radio communication device as claimed in claim 14, described memory are also preserved about following instruction:

In comprising the time slot of described SRS, ACK symbol and RS symbol are used 3 DFT spreading codes.

16, radio communication device as claimed in claim 14, described memory are also preserved about following instruction:

17, radio communication device as claimed in claim 13, described memory are also preserved about following instruction:

Described subframe is used long CP.

18, radio communication device as claimed in claim 17, described memory are also preserved about following instruction:

19, radio communication device as claimed in claim 17, described memory are also preserved about following instruction:

20, radio communication device as claimed in claim 13, described memory are also preserved about following instruction:

21, radio communication device as claimed in claim 20, described memory are also preserved about following instruction:

22, radio communication device as claimed in claim 20, described memory are also preserved about following instruction:

23, radio communication device as claimed in claim 13, described memory are also preserved about following instruction:

The quantity of the CQI symbol of minimizing in comprising the time slot of described SRS.

24, radio communication device as claimed in claim 23, described memory are also preserved about following instruction:

25, a kind of multiplexing radio communication device that is used for SRS comprises:

Be used for detecting the module of SRS symbol at the time slot of subframe;

Be used for adjusting the module of the channel architecture of described at least one time slot of subframe;

Be used for utilizing the existence of described SRS to determine that one or more time slots in described subframe will be applied to the type of time domain orthogonal spreading code of channel and the module of length; And

Be used at least one time slot of described subframe, determined spreading code being applied to the module of described channel.

26, radio communication device as claimed in claim 25 also comprises:

Be used for reducing module in the quantity of the ACK of the time slot that comprises described SRS symbol.

27, radio communication device as claimed in claim 25 also comprises:

Be used for reducing module in the quantity of the RS of the time slot that comprises described SRS symbol.

28, radio communication device as claimed in claim 25 also comprises:

Be used for and reduce by 1 module in the quantity of the CQI of the time slot that comprises described SRS symbol.

29, radio communication device as claimed in claim 28 also comprises:

Be used to increase the module of effective code check of CQI channel.

30, a kind of computer program comprises:

Computer-readable medium comprises:

Be used for detecting the code of SRS symbol at the time slot of subframe;

Be used to change the code of channel architecture of the time slot of described subframe;

Be used for existence, come to determine to be applied to the type of time domain orthogonal spreading code of channel and the code of length for described one or more time slots of described subframe according to the SRS of one or more time slots of described subframe; And

Be used at least one time slot of described subframe, determined spreading code being applied to the code of described channel.

31, computer program as claimed in claim 30, described computer-readable medium also comprises:

Be used for reducing code in the quantity of the ACK of the time slot that comprises described SRS symbol.

32, computer program as claimed in claim 31, described computer-readable medium also comprises:

Be used for ACK symbol and RS symbol being used the code of 3 DFT spreading codes at the time slot that comprises described SRS.

33, computer program as claimed in claim 31, described computer-readable medium also comprises:

Be used for the ACK symbol being used 4 orthogonal intersections and the RS symbol being used the code of 3 DFT spreading codes at second time slot.

34, computer program as claimed in claim 30, described computer-readable medium also comprises:

Be used for described subframe is used the code of long CP.

35, computer program as claimed in claim 34, described computer-readable medium also comprises:

Be used for the ACK symbol being used 3 DFT spreading codes and the RS symbol being used the code of 2 orthogonal intersections at the time slot that comprises described SRS.

36, computer program as claimed in claim 34, described computer-readable medium also comprises:

Be used for the ACK symbol being used 4 orthogonal intersections and the RS symbol being used the code of 2 orthogonal intersections at second time slot.

37, computer program as claimed in claim 30, described computer-readable medium also comprises:

Be used for reducing code in the quantity of the RS of the time slot that comprises described SRS symbol.

38, computer program as claimed in claim 37, described computer-readable medium also comprises:

Be used for the ACK symbol being used or 4 DFT spreading codes at 2 and the RS symbol being used the code of 2 DFT spreading codes at the time slot that comprises described SRS.

39, computer program as claimed in claim 37, described computer-readable medium also comprises:

40, computer program as claimed in claim 30, described computer-readable medium also comprises:

Be used for reducing code in the quantity of the CQI of the time slot that comprises described SRS symbol.

41, computer program as claimed in claim 40, described computer-readable medium also comprises:

The quantity that is used for the RS symbol by reducing the CQI channel increases the code of effective code check.

42, a kind of device in wireless communication system comprises:

Processor, it is configured to:

In the time slot of subframe, detect the SRS symbol;

Revise the channel architecture of at least one time slot in the subframe;

Calculating will be applied to the type and the length of the time domain orthogonal spreading code of channel in one or more time slots of described subframe, wherein calculate described spreading code according to the existence of the SRS in described one or more time slots of described subframe; And

In described at least one time slot in described subframe described spreading code is applied to described channel.

43, a kind of being used for carried out multiplexing method to SRS at wireless communications environment in ack channel, may further comprise the steps:

In the time slot of subframe, detect the existence of SRS symbol;

Revise the ack channel structure of at least one time slot in the subframe;

According to the existence of SRS, determine in the described time slot of described subframe, will be applied to the length and the type of the time domain orthogonal spreading code of ack channel; And

In at least one time slot in described subframe determined spreading code is applied to described ack channel.

44, method as claimed in claim 44, the step of revising the ack channel structure of at least one time slot in the subframe is further comprising the steps of:

Minimizing in comprising the ack channel of described SRS the ACK symbol or the RS symbol at least one quantity.

45, a kind of radio communication device comprises:

Memory, it is preserved about following instruction:

In the time slot of subframe, find the existence of SRS symbol;

Revise the ack channel structure of one or more time slots in the described subframe;

According to the existence of the described SRS in described time slot, calculate the length and the type of the time domain orthogonal spreading code that in the time slot of described subframe, will be applied to ack channel;

In one or more time slots in described subframe the spreading code that is calculated is applied to described ack channel; And

46, a kind of being used for carried out multiplexing radio communication device at ack channel to SRS, comprising:

Be used for detecting the module of SRS symbol at the time slot of subframe;

Be used for adjusting the module of the ack channel structure of described at least one time slot of subframe;

Be used to utilize the existence of described SRS, determine in one or more time slots of described subframe, will to be applied to the type of time domain orthogonal spreading code of ack channel and the module of length; And

Be used at least one time slot of described subframe, determined spreading code being applied to the module of described ack channel.

47, a kind of computer program comprises:

Computer-readable medium comprises:

Be used for detecting the code of SRS symbol at the time slot of subframe;

Be used to change the code of ack channel structure of the time slot of described subframe;

Be used for existing, determine in described one or more time slots of described subframe, will to be applied to the type of time domain orthogonal spreading code of ack channel and the code of length according to SRS at one or more time slots of described subframe; And

Be used at least one time slot of described subframe, determined spreading code being applied to the code of described ack channel.

48, in wireless communication system, a kind of device comprises:

Processor, it is configured to:

In the time slot of subframe, detect the SRS symbol;

Revise the ack channel structure of at least one time slot in the subframe;

Calculating will be applied to the type and the length of the time domain orthogonal spreading code of ack channel in one or more time slots of described subframe, wherein calculate described spreading code according to the existence of the SRS in described one or more time slots of described subframe; And

In described at least one time slot in described subframe described spreading code is applied to described ack channel.